In an effort to establish what spacers I may need to fit 18z calipers under my 19" CH026's, I wondered if anybody had ever measured, or had sets to hand of, both the standard GTi & 18z calipers? The measurement Im after is the distance from the inner face of the mounting holes/lugs on the caliper to the outside edge of the caliper to establish how much further the 18z will stick out compared to the stock brakes.